Glean in 2026 is the AI knowledge agent that's becoming the default at companies with 500+ employees and fragmented internal knowledge. Started as enterprise search, now does real agent work: answer, act, follow up.
The 30-second take
Glean sits over your internal stack — Slack, Google Workspace, Jira, Confluence, Salesforce, GitHub, Notion, you name it — and lets employees ask questions in natural language. Behind the chat surface, Glean does proper agentic RAG: plans the search, queries multiple sources, evaluates results, drafts a cited answer, and (increasingly) takes action.
The killer feature is permissions-aware retrieval. Employees only see results they could access in the source system — Glean doesn't accidentally expose the comp doc or the unsigned acquisition memo. This is what lets enterprises actually deploy it.
What Glean does well
100+ enterprise connectors. Slack, GSuite, Microsoft 365, Salesforce, HubSpot, Jira, Confluence, GitHub, Notion, Box, Dropbox, Zendesk, Intercom, Linear, Asana, Workday — all native, all permission-respecting, all maintained by Glean. This breadth is hard to underestimate for a real enterprise stack.
Cited answers, not vibes. Every response cites the underlying document. Employees can click through to verify, and admins can audit what Glean drew from. Halves the "is this hallucinated?" cognitive load.
Custom apps + workflows. Glean Apps lets you build internal agents that go beyond Q&A — onboarding assistant that schedules first-week meetings, sales-prep agent that drafts pre-call briefs, IT assistant that opens Jira tickets. The platform is increasingly the agent runtime, not just the search UI.
Permission inheritance. This is the deployment unlock. Every retrieval respects the source system's ACLs, so HR doesn't see engineering's incident reports unless they should, and engineers don't see comp data they shouldn't. Many competing tools shortcut this; Glean doesn't.
Where Glean stumbles
Pricing for SMB is rough. Public list pricing starts around $40-50/seat/month with enterprise tiers higher. At 500 employees that's $250-300K/year — fine for a Fortune 1000, expensive for a 100-person startup.
Setup is real work. Connector configuration, permission audits, fine-tuning the relevance signals, change-management for employees to actually use it — 60-90 day implementation is typical. Glean has a strong customer success motion but you're still doing the work.
Custom Apps require commitment. The platform is powerful but building production-grade internal agents on Glean is a real engineering investment. Many companies underestimate this and end up with a $300K/year search box.
Pricing reality check
Glean doesn't post list pricing publicly (enterprise sales motion). Reference points from public deployments:
- Per-seat pricing: ~$40-50/month (volume discounts above 1,000 seats)
- Custom Apps platform: typically included at 1,000+ seat tier; add-on at smaller scale
- Connectors: included with base subscription; some premium connectors (Snowflake, Workday HR data) at enterprise tier only
For a 500-employee company: budget $250-350K/year all-in (subscription + 90-day implementation + customer success engagement).
How Glean compares
- Glean vs Moveworks: Moveworks is stronger on IT ticket automation; Glean is stronger on knowledge retrieval breadth. Both are credible at enterprise scale.
- Glean vs Notion AI: Notion AI works inside Notion. Glean works across your entire stack. Different products for different problems.
- Glean vs Microsoft Copilot: Copilot is bundled with M365 at $30/user/month, which is hard to beat on price. Glean wins on retrieval quality + non-Microsoft data sources. If you're a pure Microsoft shop with all-Microsoft data, Copilot first; otherwise Glean.
Bottom line
If you have 500+ employees, fragmented knowledge across 10+ SaaS tools, and a budget for "real enterprise software," Glean is the default. The 60-90 day implementation is the price of admission. Below 200 employees, a well-organized Notion + a thin AI wrapper does 70% of the job at 5% of the cost.